On Tue, Oct 25, 2011 at 09:57:17PM -0400, Ilija Hadzic wrote:
The following two patches address potential problems that I called "troubles waiting to happen" in this note http://lists.freedesktop.org/archives/dri-devel/2011-October/015412.html
I didn't hear anyone take on my question, so I figured I would just send the patches. I tested the patches on a variety of AMD cards that I have. I don't have other GPUs handy.
I've quickly checked current callsites of drm_fb_helper_init and I think you can just kill the two arguments crtc_count and max_conn_count. All drivers pass in the actual crtc count for the first and some midly bogus constant for the latter.
i915 and radeon also use that constant to attach some struct drm_connector * pointers to the end of their crtc, which looks rather unused. You might want to kill that, too. -Daniel